Security

Hey guys,

running Aruba ClearPass 6.7.7 + ArubaOS 16.05 on 2930F Switches, i've noticed in the switch log following events:

I 02/21/19 08:07:23 00076 ports: ST1-CMDR: port 1/32 is now on-line
I 02/21/19 08:07:21 00435 ports: ST1-CMDR: port 1/32 is Blocked by STP
I 02/21/19 08:07:20 00435 ports: ST1-CMDR: port 1/32 is Blocked by AAA
I 02/21/19 08:07:15 00900 ports: ST1-CMDR: port 1/32 timer (37) has expired
I 02/21/19 08:07:03 00077 ports: ST1-CMDR: port 1/32 is now off-line
I 02/21/19 08:07:03 00898 ports: ST1-CMDR: RADIUS(37) has disabled port 1/32 for
            12 seconds
I 02/21/19 08:07:01 00076 ports: ST1-CMDR: port 1/32 is now on-line
I 02/21/19 08:06:58 00435 ports: ST1-CMDR: port 1/32 is Blocked by STP
I 02/21/19 08:06:58 00435 ports: ST1-CMDR: port 1/32 is Blocked by AAA
I 02/21/19 08:04:18 00077 ports: ST1-CMDR: port 1/32 is now off-line
I 02/21/19 08:02:42 00076 ports: ST1-CMDR: port 1/32 is now on-line
I 02/21/19 08:02:39 00435 ports: ST1-CMDR: port 1/32 is Blocked by STP

Configuration:

interface 1/32
   untagged vlan 1
   no snmp-server enable traps link-change
   aaa port-access authenticator
   aaa port-access authenticator auth-vid 98
   aaa port-access authenticator client-limit 1
   aaa port-access mac-based
   aaa port-access mac-based auth-vid 98
   aaa port-access mac-based unauth-vid 98
   exit

What feature or reason could be involved for disabling of port 1/32 for 12 seconds? Is this a CoA bouncing port for 12 seconds or is this a kind of rate limiting feature (and if, how to tweak or switching it off)?

Thanks for some feedback